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12020250 = 2353113147
BaseRepresentation
bin101101110110…
…101000011010
3211121200200110
4231312220122
511034122000
61105345150
7204112314
oct55665032
924550613
1012020250
11686aaa0
1240381b6
13264b298
14184c7b4
1510c6850
hexb76a1a

12020250 has 128 divisors (see below), whose sum is σ = 34504704. Its totient is φ = 2760000.

The previous prime is 12020249. The next prime is 12020299. The reversal of 12020250 is 5202021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255727 + ... + 255773.

It is an arithmetic number, because the mean of its divisors is an integer number (269568).

Almost surely, 212020250 is an apocalyptic number.

12020250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17252352).

12020250 is an abundant number, since it is smaller than the sum of its proper divisors (22484454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12020250 is a wasteful number, since it uses less digits than its factorization.

12020250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12020250 is about 3467.0232188435. The cubic root of 12020250 is about 229.0715564918.

Adding to 12020250 its reverse (5202021), we get a palindrome (17222271).

The spelling of 12020250 in words is "twelve million, twenty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 11 15 22 25 30 31 33 47 50 55 62 66 75 93 94 110 125 141 150 155 165 186 235 250 275 282 310 330 341 375 465 470 517 550 682 705 750 775 825 930 1023 1034 1175 1375 1410 1457 1550 1551 1650 1705 2046 2325 2350 2585 2750 2914 3102 3410 3525 3875 4125 4371 4650 5115 5170 5875 7050 7285 7750 7755 8250 8525 8742 10230 11625 11750 12925 14570 15510 16027 17050 17625 21855 23250 25575 25850 32054 35250 36425 38775 42625 43710 48081 51150 64625 72850 77550 80135 85250 96162 109275 127875 129250 160270 182125 193875 218550 240405 255750 364250 387750 400675 480810 546375 801350 1092750 1202025 2003375 2404050 4006750 6010125 12020250